Now, as the right pedal should not be used to cover a lack of force, so should the left pedal not be regarded as a licence to neglect the formation of a fine pianissimo touch. It should not cloak or screen a defective pianissimo, but should serve exclusively as a means of colouring where the softness of tone is coupled with what the jewellers call "dull finish." For the left pedal does not soften the tone without changing its character; it lessens the quantity of tone but at the same time it also markedly affects the quality.
To Sum Up: Train your ear and then use both pedals honestly! Use them for what they were made. Remember that even screens are not used for hiding things behind them, but for decorative purposes or for protection. Those who do use them for hiding something must have something which they prefer to hide!
PLAYING "IN STYLE"
By playing a piece of music "in style" is understood a rendition which does absolute justice to its contents in regard to the manner of expression. Now, the true manner of expression must be sought and found for each piece individually, even though a number of different pieces may be written by one and the same composer. Our first endeavour should be to search out the peculiarity of the piece in hand rather than that of the composer in general. If you have succeeded in playing one work by Chopin in style, it does not follow, by any means, that you can play equally well any other work from his pen. Though on general lines his manner of writing may be the same in all his works, there will, nevertheless, be marked differences between the various pieces.
Only by careful study of each work by itself can we find the key to its correct conception and rendition. We will never find it in books about the composer, nor in such as treat of his works, but only in the works themselves and in each one per se. People who study a lot of things about a work of art may possibly enrich their general knowledge, but they never can get that specific knowledge needful for the interpretation of the particular work in hand. Its own contents alone can furnish that knowledge. We know from frequent experience that book-learned musicians (or, as they are now called, musicologists) usually read everything in sight, and yet their playing rises hardly ever above mediocre dilettanteism.
Why should we look for a correct conception of a piece anywhere but in the piece itself? Surely the composer has embodied in the piece all he knew and felt when he wrote it. Why, then, not listen to his specific language instead of losing our way in the terms of another art? Literature is literature, and music is music. They may combine, as in song, but one can never be substituted for the other.
Many Students Never Learn to understand a composer's specific language because their sole concern is to make the piece "effective" in the sense of a clever stunt. This tendency is most deplorable; for there really does exist a specifically musical language. By purely material means: through notes, pauses, dynamic and other signs, through special annotations, etc., the composer encloses in his work the whole world of his imagination. The duty of the interpretative artist is to extract from these material things the spiritual essence and to transmit it to his hearers. To achieve this he must understand this musical language in general and of each composition in particular.
But—how is this language to be learned?
By conning with careful attentiveness—and, of course, absorbing—the purely material matter of a piece: the notes, pauses, time values, dynamic indications, etc.
If a player be scrupulously exact in his mere reading of a piece it will, of itself, lead him to understand a goodly portion of the piece's specific language. Nay, more! Through a really correct conning the player is enabled to determine upon the points of repose as well as upon the matter of climax, and thus to create a basis for the operations of his own imagination. After that, nothing remains but to call forth into tonal life, through the fingers, what his musical intelligence has grasped—which is a purely technical task. To transform the purely technical and material processes into a thing that lives, of course, rests with the natural, emotional, temperamental endowments of the individual; it rests with those many and complex qualities which are usually summarised by the term "talent," but this must be presupposed with a player who aspires to artistic work.